Home / 681,983,999.70-1,022,975,999.55-409,662,258.90

Finding the Fourth Proportional to 681,983,999.70, 1,022,975,999.55 and 409,662,258.90

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Solution

The fourth proportional to 681,983,999.70, 1,022,975,999.55 and 409,662,258.90 is: 614,493,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,983,999.70 : 1,022,975,999.55 = 409,662,258.90 : x
  2. Step 2: Convert to fraction form
    681,983,999.70/1,022,975,999.55 = 409,662,258.90/x
  3. Step 3: Cross multiply
    681,983,999.70x = 1,022,975,999.55 × 409,662,258.90
  4. Step 4: Simplify right side
    681,983,999.70x = 419,074,658,776,138,368
  5. Step 5: Solve for x
    x = 419,074,658,776,138,368/681,983,999.70
  6. Step 6: Final answer
    x = 614,493,388.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.